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Coercivity enhancement in melt-spun SmCo5 by Sn addition |
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| Authors: | AA Kündig R Gopalan T Ohkubo K Hono |
| Affiliation: | aNational Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan bInternational Center for Young Scientists, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan |
| Abstract: | Additions of Sn to SmCo4.7 alloy were found to increase the coercivity of melt-spun ribbons by forming an Sn-rich non-magnetic grain boundary phase. The highest coercivity of 2.56 MA/m (32 kOe) was obtained for the composition SmCo4.7Sn0.08. Microstructures of the melt-spun alloys SmCo4.7Snx (x = 0–0.35), SmCo7Sn0.08 and Sm1.25Co4.7Sn0.25 were analyzed by transmission electron microscopy, energy filtered electron microscopy and X-ray diffraction in order to discuss the increase in coercivity. |
| Keywords: | SmCo5 Melt-spinning Coercivity Microstructure TEM |
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